Description: 【Billiards Cue Training Device】: This is a billiards cue training device, designed to help you improve your basic skills and accuracy in the game of pool. It's great for both beginners and experienced players who want to enhance their performance 【Eye Line Correction】: The Billiards training aid features a unique design that allows you to two lines into 1 by looking down at it, helping you adjust your dominant eye line with the trajectory of the ball. This helps improve your precision 【Straightness Practice】: With this training tool, you can practice maintaining straightness, which is crucial for successful gameplay in billiards. It provides an effective way to check and correct your cueing action 【Versatile Compatibility】: Suitable for Chinese, American, and Snooker billiards games, this Billiard Stroke trainer is suitable for players of all styles seeking consistent improvement in their performance 【Quality Material & Size Compatibility】: Made from PP material, this training equipment is built to last Its dimensions of 18 cm x 5 cm x 4 cm / 7.09 inch x 1.97 inch x 1.57 inch, making it versatile for use with both large tip cues and small tip cues Specification: Material: Plastic Size Chart: 18cmx5cmx4cm/7.09inchx1.97inchx1.57inch Package Includes: 1 Billiards Stroke Trainer Note: Please allow slightly errors 1-2cm differences due to manual measurement.